Mowing-machine.



F'. M. GRANLUND.

} MOWING MACHINE.

APPLICATION FILED 1':0v.1e,1912.

1,084,134; Patented Jan. 13, 1914. J

3 SHEETS-SH? l.

WITNESSES. INVENTOR.

. FRANK I LCRANLU O a Allorney I. M. GRANLUND.

MOWING MACHINE.

APPLICATION FILED NOV. 10, 1912.

Patented Jan 13, 1914.

3 SHEETS-SHEET 2.

IDNVENTOR.

.FRANKM QRANLUND.

.6 Y fl V V 1 Allornzy 'P. M. ORANLUND.

MOW-ING MACHINE.

' APPLICATION FILED N0v.'1e,1912. v I 1,084,134. Patented Jan. 13,1914.

Slwwwtoz FRANK M CRANLUND.

* WW MM FRANK M CRANLUND, OF CROMWELL, MINNESOTA.

I MOWING-MAOHINE.

Specification of Letters Patent.

Patented Jan. 1 3,1914.

Application filed November 16, 1912. Serial No. 731,846.

To all whom it may concern:

Be it known that I, FRAXK M. Cu \NLUXI). a citizen of the United States. residing at Cromwell. in the county of Car -ton and State of Minnesota. have invented certain new and useful Improvements in Mowing- Machincs, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in farm implements and more particularly to a mowing machine or harvester. the object of the invention being to providean arrangement whereby the mower bar or cutter is driven entirely independent of the advance of the implement.

A further object. is to provide means for throwing the driving mechanism of the cutter bar out of operation soas to prevent injury to the teeth of the cutter when obstructions such as stones or the like become caught in the teeth. 7

Another object of the invention is to provide an implement 'of the above character which will possess advantages in points of 1 efficiency and durability, is inexpensive of manufacture and at the same time is simple in construction and operation;

With the above and other objects in View.

this invention consists in the novel details of construction, combination and arrangc ment of parts as will be hereinafter more fully described and shown in the accompanying drawings, in which- Figure 1 is a top plan view of a harvester constructed in accordance with-my invention. Fig. 2 is a side elevation. Fig. Bis a side elevation illustrating my improved means for raising and lowering the cutter bar. Fig, 4 is a front elevation of the same. Fig. 5 is a side elevation taken from the opposite side to that shown in Fig. 3. Fig. 6 is a sectional view taken on the line 6-6 of Fig. 5. 'Fig. 7 is a detail perspective view of the coil spring which helps to reduce the weight from the cutter bar. and Fig. 8 is a detail view, parts being broken away and in section illustrating ter bar.

Referring more particularly to the drawings, 1 indicates the framework of the ma chine which is suitably mounted upon an axle 2 upon the en s of which are mounted means fortilting the cutthe traction wheels 3. Suitably supported by means of the bars 4 is the cutter bar 5 which is arranged directly in advance of the axle 2 and it will be unde-rstoodthat there is to be sufficient space between the utter bar and the axle to allow the cut grain to fall to the ground after being out without engaging any of the mechanism. carried by the frame. Y

Mounted upon the frame 1 and arranged upon one side' thereof at the rear ofthe axle 2 is a motor 6, by means of which the cutter bar 5 is operated and the traction wheelsare also operated to control the advance of the implement. The piston 7 of the motor is suitably connected to a crank 8 formed upon the longitudinal shaft 9 upon one end of which is mounted a fly wheel 10. Arranged in parallel relation with the shaft 9 and disposed at the rear thereof is the traction shaft 11 upon the outer ends of which are mounted the gears '12 which are adapted to mesh with the teeth 13 formed upon the inner periphery of the wheels 3. The shaft 11 is rotated through the medium of the gear 14 which meshes with the gear 15 mounted. upon the main shaftfi), the rotation of the gear 14 being controlled through'the medium of the clutch member 16. Mounted upon the shafit 11 and arranged adjacent the gears 12 are. the clutch members 17 which are operated by means of-the bell cranks 18 and the levers 19, The gears 12 are to be-rotated through the engagement of the clutch members 18 so that by the operation of the levcrs 19 the traction wheels may be rotated or retained stationary.

Arranged in parallel relation with the shaft 9 and disposed in front thereof, is a stub shaft 20 which is suitably connected to the shaft. 9 by means of the gears 21 and 22. Mounted upon the shaft 20 and adapted to engage a gear 23. which is loosely mounted upon the axle 2, is a gear 24. The gear 23 is adapted to impart motion to a beveled gear 25. which is mounted upon the axle 2. by means of the clutch member 26, said clutch member being manipulated by means mounted upon the inner end of the shaft 29'.

Pivot-ally secured to the outer end of the. shaft 29 is a pitman 30 which is suitably connected tothe cutter'bar as shown at 31 and adapted to reciprocate the same upon the rotation of the shaft 29.- Arranged and their other ends pivotal] upon the main shaft 9 is a reverse clutch 32 which is operated by means of the lever 33 so that the machine may he quickly hgicked away from an object with ivhhthllgre cr tter her has come in contact.

Supported at the rear of the frame 1 by means oi? the brace members 3% is csteering" wheel 35 which is manipulated by means: of the gear adapted to mesh with the worm upon the rear end of the operating shalt 38. Secured to the forward end of the shaft 38 is a hevoled gear 39 which is adapted to mesh with a similar gear mounted open the lower end of the steering shnttRlO. The

steering-shaft 40 is operated by menus of a hand wheel all niounled upon the upper end thereof and arranged in :fronii the-01% erntors seat so that the adv a-nee of ihcImochine can be readily contrdlled by the, operator. v I i V ff v Arranged; above the axle-9 end'in psfiaced relation therewith is e she-it did-which suitably supported by means of the" bearing members 44?. l'ligidly secured'to thcfcjhaft 4-3 and arranged adjacent each end thereof are the rearwardly extending arms 45 which are provided at their rear ends with iheelongated slots 46 which are ndaptedto receive the pins 4?. Nuts 45 are threaded u on the ends of the'pins opposite the ends of the links 48' to securely 101d snid pins in csi tion. Gonnecting links 48 are provided av mounted within the brackets 53 carried by the nuns Mounted upon the rods 52 and having one of their ends secured to the hrnclzets 53 and their other ende secured to the collars 51 are the coil tension springs 54. which are adopted to reduce the Weight from the cutter bar when the same is in its lowered or operative position.

Mounted upon the cross piece 55 is a rack bar 56, said rack her being provided with a central bearing 57 in. which the shaft 43 is mounted. Mounted upon the shaft 43 and arranged adj'acent the rack bar 56 is a lever 58" cnrryin r the spring pressed pluwl 59 which is a opted to on age with t eii'teeth on the rock to hold the ever in various adjusted positions, the adjustment of said lever raising and lowering the cutter 5. In raising the cutter her, the lever 15 pushed downwardly, actuating the arms 45 and pressing downwardly upon the rear of the extensions 19, this action removing the tension from the spring-e no: so that {when the cutter bar is lowered", the springs will 9 which are be placed under tension and help reduce the Weight of the cutter her so that the some may be easily lowered.

In Fig. 8, I have shown a novel means for adjustin the cut of the her 5 so that the some \vi 1 either out close to the ground or he raised therefrom. In this form, Ihuvc secured the cutter bar at the lower endfif the here t as shown at 60 and the pear edge of the cutter bar is rovided with .the threaded openings 61, the Ears 4 are also provided with o threaded opening 62. Arranged between the-bars 4 and the cuttelf ha r 5 is a vertically disposed threaded rod .63, the ends of which are engaged within the threaded openings '61 and 62 so that iii-hen the rod is rotated by means of the mm M upon the intermediate portion thereii'f, the outer edge of the cutter bay; will be *liiltd toward or away loom tho ground.

f Fromxthe above description taken in conneeti'on with the acwmpoii'ying drawings, it; win be readily apperenfi'tha t the machine r-iin he quickly and easilymjovcd from place to place without operating he cutter bar and it will also be seen that tho cutter bar can be driven entirely indepefident'of tho ndvanc'cmcnt of the machine. "It will also be :ipparent thatthe opcratin median" A of the cutter bar can locv quic y and thrown out of operation to prevent inju to the teeth of the cutter bar when obstmotions such as stones and the like are ctug'hp therein. It will also be seen that I havo provided novel mechanism whereby the cutter bar may be raised entirely free from the ground when the machine is being moved from place to place so that the same will not come in contact with the uneven surface of the ground;

While I have shown and described the prev tel-red form of my invention, it will be obvious that various changes in the details of 7 construction and in the roportions maybe resorted to for successfully carrying my i II'- vent-ion into practice without sacrificing any of the novel features or departing from the scope of the appended claims.

hat I claim is:

1. In a mowin machine, the combination or a traction ex e havinga traction wheel upon each end thereof, bars having one and mounted u on said axle adjacent each old and extending forwardly therefrom, a a

I wronged in spaced relation with the uh,

bar carried by the outer end of said bars ml oxtcnsions formed upon said bars and projacking 'rearwardly, a ahaftmounted upon,

the 'exle and arranged in spaced relation therewith, an arm mounted upon each and of said shaft, links pivotally connecting said firms with the extension: on the bars, collm mounted upon the axle adjaocntcaeh end thereof, means for raising said cutter bar ondccil springs acting against said arms for with a traction axle, bars having one end mounted upon said axle adjacent each end and extending forwardly therefrom, a cutter bar carried by the outer endsof said bars,

- extensions formed on said bars and projecting'rea'rwardlyfrom the axle, a shaft mounted above said axle and arranged in spaced relation therewith an arm projectin rearwardly from each end of said sha said arms having slots in their rear ends, pins movably mounted within said openings, links connecting said pins and the rear ends of the extensions, and means for rotating said shafts to raise and lower the cutter bar.

3. In a mowing machine, the combination with a traction axle, bars having one end mounted u on said axle adjacent each end and extending forwardly therefrom, a cutter bar carried by the outer endsof said bars, extensions formed on said bars and projecting rearwardly from the axle, a shaft mounted above said axle and arranged in spaced relation therewith, an arm projecting rearwardl from each end of said shaft, said arms" aving slots in their rear ends, pins movably mounted in said openings, links connecting said pins and the rear ends of the extensions, collars mounted upon the axle adjacent each end thereof, means for raising said cutter bar and coil springs acting against said arms for returning the cutter bar to its operative osition.

v In testimony whereof I ereunto afiix my signature in the presence oftwo witnesses.

FRANK M; ORANLUND.-

Witnesses:

IDA Eu MORSE, 'WILLAJA SARELA. 

